Details of the principal triangulation of eleven of the component series of the North-East quadrilateral : including the following series: the Gurwani meridional, the Goral meridional, the Hurilaong meridional, the Chendwar meridional, the North Parasnath meridional, the North Maluncha meridional, the Calcutta meridional, the East Calcutta longitudinal, the Brahmaputra meridional, the Eastern frontier sec. 23°- 26°, the Assam longitudinal.
Survey of India.Trigonometrical Branch.
Dehra Dun : Office of the Trigonometrical Branch, Survey of India,
1882.
India. Great Trigonometrical Survey.
Geodesy
Geodesy
Triangulation
Triangulation